classnotfoundexception

问题 The ClassNotFoundException questions are found by the dozens on SO but even so I did not find the answer to my problem in past answers :( Basically I get a ClassNotFoundException while trying to run a large open source program from the command line using a command prompt that is provided in the project's doc. The prompt is as follow: java -cp "target/classes/*;../../Algotrader/code/target/classes/*;../../lib/*;../../target/*" -Dsimulation=true -DdataSource.dataSet=1year com.algoTrader.starter

问题 Using the following code I get a NoClassDefFoundError caused by ClassNotFoundException: File file = new File( "C:\\prototype.core.bl.xmodelval.xmodel-1.0.0.jar" ); URL url = file.toURI().toURL(); URL[] urls = new URL[] { url }; ClassLoader cl = new URLClassLoader( urls ); Class cls = cl.loadClass("de.zeb.control.prototype.core.bl.xmodelval.xmodel.entity.EntityNameLengthXModelValidationRule" ); The jar and the class in the jar are definitely available. The following exception is thrown by cl

问题 Using Hadoop mapreduce I am writing code to get substrings of different lengths. Example given string "ZYXCBA" and length 3. My code has to return all possible strings of length 3 ("ZYX","YXC","XCB","CBA"), length 4("ZYXC","YXCB","XCBA") finally length 5("ZYXCB","YXCBA"). In map phase I did the following: key = length of substrings I want value = "ZYXCBA". So mapper output is 3,"ZYXCBA" 4,"ZYXCBA" 5,"ZYXCBA" In reduce I take string ("ZYXCBA") and key 3 to get all substrings of length 3. Same

问题 I have been trying out Vaadin 7. Firstly, I must admin that I am quiet a noob at Vaadin and not much familiar with JAVA persistance. I am thus trying to learn bean validation and how to use it. I have followed couple of tutorials, but its really hard to decide which is the latest and correct one for Vaadin 7. Nonetheless, I tried downloading and using the JPA container and the BeanValidator and I can't get it working. Here is the code I am using: package com.example.firstvaadin; import java

问题 Note: even though this question involves GWT, it's really an Ant question. All I'm asking is: is the Ant PATH that I have below a "legal" path? I am getting ClassNotFoundExceptions on a type ( com.google.gwt.dev.Compiler ) that is packaged inside gwt-dev.jar (which as you can see is configured to be on the path below). Does the gwt.path look wrong to anyone: <path id="gwt.path"> <pathelement location="${gen.bin.main.dir}"/> <fileset dir="${gen.lib.main.dir}"> <filename name="gin-2.1.2.jar"/>

问题 When I send a response from servlet to ajax, I get ClassNotFoundException about Gson class. Here is the stacktrace: java.lang.ClassNotFoundException: com.google.gson.Gson at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559) at com.jotform.demo.write(demo.java:64) at com.jotform.demo.doPost(demo.java:53) at javax.servlet.http.HttpServlet.service(HttpServlet.java:647) at

问题 I am working on a web based project. When I startup my tomcat server it redirects to an Login HTML page. On click of a login link a JSP Page is called. All the validation is done in the JSP page. Here Hibernate is used to interact with the database. Problem: On click of the login link, a ClassNotFoundException for the class MetadataProvider and ReflectionManager is thrown. Both the classes belong to the hibernate-annotations-common jar. I have tried installing hibernate by updating my eclipse

问题 This is the continuation of this question: Unable to merge dex - how to exclude proper jar? I have not a typical android project, i am just working on the separate module, which is not connected with activies, fragments, UI etc. in my manifest i am not declaring any Android specifiacions. Here is my manifest: <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.moduleName.sampleName" > <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"> </uses

问题 After Migrating to AndroidX(29) running on the AndroidX device Crashes showing ClassNotFoundException: config_inputEventCompatProcessorOverrideClassName the project compiles and runs it crashes when launched in andorid10.0 when clicked on the editText i get this error enter code here NullPointerException: Attempt to invoke virtual method 'java.util.List android.view.InputEventCompatProcessor.processInputEventForCompatibility(android.view.InputEvent)' on a null object reference project/build

问题 Following with this link https://cwiki.apache.org/confluence/display/Hive/HBaseIntegration#HBaseIntegration-HiveMAPtoHBaseColumnFamily I'm trying to integrate hive and hbase, I have this configuration in hive-site.xml: <property> <name>hive.aux.jars.path</name> <value> file:///$HIVE_HOME/lib/hive-hbase-handler-2.0.0.jar, file:///$HIVE_HOME/lib/hive-ant-2.0.0.jar, file:///$HIVE_HOME/lib/protobuf-java-2.5.0.jar, file:///$HIVE_HOME/lib/hbase-client-1.1.1.jar, file:///$HIVE_HOME/lib/hbase-common